./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:31:48,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:31:48,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:31:48,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:31:48,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:31:48,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:31:48,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:31:48,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:31:48,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:31:48,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:31:48,574 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:31:48,574 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:31:48,574 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:31:48,574 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:31:48,574 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:31:48,574 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:31:48,574 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:31:48,575 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:31:48,575 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:31:48,575 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:31:48,575 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:31:48,575 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:31:48,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:31:48,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:31:48,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:31:48,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:31:48,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:31:48,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:31:48,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:31:48,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:31:48,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:31:48,577 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:31:48,577 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:31:48,577 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:31:48,577 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:31:48,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:31:48,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:31:48,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:31:48,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:31:48,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:31:48,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:31:48,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:31:48,579 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 [2024-11-14 03:31:49,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:31:49,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:31:49,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:31:49,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:31:49,056 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:31:49,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i Unable to find full path for "g++" [2024-11-14 03:31:51,538 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:31:51,904 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:31:51,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2024-11-14 03:31:51,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/data/7ea2df383/761a1b7533c340f1a2887f1e0f0118da/FLAGda80dc444 [2024-11-14 03:31:51,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/data/7ea2df383/761a1b7533c340f1a2887f1e0f0118da [2024-11-14 03:31:51,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:31:51,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:31:51,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:31:51,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:31:51,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:31:51,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:31:51" (1/1) ... [2024-11-14 03:31:51,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50defa1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:51, skipping insertion in model container [2024-11-14 03:31:51,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:31:51" (1/1) ... [2024-11-14 03:31:52,012 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:31:52,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:31:52,528 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:31:52,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:31:52,640 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:31:52,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52 WrapperNode [2024-11-14 03:31:52,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:31:52,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:31:52,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:31:52,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:31:52,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,696 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-11-14 03:31:52,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:31:52,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:31:52,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:31:52,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:31:52,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:31:52,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:31:52,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:31:52,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:31:52,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (1/1) ... [2024-11-14 03:31:52,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:31:52,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:52,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:31:52,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:31:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:31:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:31:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:31:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:31:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:31:52,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:31:52,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:31:52,981 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:31:53,237 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-14 03:31:53,237 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:31:53,310 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:31:53,310 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 03:31:53,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:53 BoogieIcfgContainer [2024-11-14 03:31:53,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:31:53,314 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:31:53,314 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:31:53,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:31:53,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:31:51" (1/3) ... [2024-11-14 03:31:53,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d25cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:31:53, skipping insertion in model container [2024-11-14 03:31:53,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:31:52" (2/3) ... [2024-11-14 03:31:53,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d25cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:31:53, skipping insertion in model container [2024-11-14 03:31:53,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:53" (3/3) ... [2024-11-14 03:31:53,324 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca-1.i [2024-11-14 03:31:53,344 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:31:53,345 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG java_BubbleSort-alloca-1.i that has 1 procedures, 36 locations, 1 initial locations, 3 loop locations, and 14 error locations. [2024-11-14 03:31:53,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:31:53,437 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b222194, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:31:53,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-14 03:31:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:53,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:31:53,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:53,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:31:53,451 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:53,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:53,457 INFO L85 PathProgramCache]: Analyzing trace with hash 115865, now seen corresponding path program 1 times [2024-11-14 03:31:53,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:53,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949198949] [2024-11-14 03:31:53,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:53,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:53,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:53,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949198949] [2024-11-14 03:31:53,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949198949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:53,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:53,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:31:53,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535855037] [2024-11-14 03:31:53,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:53,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:31:53,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:53,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:31:53,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:53,787 INFO L87 Difference]: Start difference. First operand has 36 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:53,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:53,855 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2024-11-14 03:31:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:31:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 03:31:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:53,871 INFO L225 Difference]: With dead ends: 66 [2024-11-14 03:31:53,871 INFO L226 Difference]: Without dead ends: 34 [2024-11-14 03:31:53,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:53,878 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 1 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:53,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 93 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:31:53,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-14 03:31:53,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-14 03:31:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2024-11-14 03:31:53,939 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 3 [2024-11-14 03:31:53,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:53,940 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2024-11-14 03:31:53,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:53,940 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2024-11-14 03:31:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:31:53,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:53,941 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:31:53,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:31:53,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:53,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:53,945 INFO L85 PathProgramCache]: Analyzing trace with hash 3591866, now seen corresponding path program 1 times [2024-11-14 03:31:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:53,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040216575] [2024-11-14 03:31:53,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:53,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:54,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:54,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:54,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040216575] [2024-11-14 03:31:54,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040216575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:54,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:54,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:31:54,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397880558] [2024-11-14 03:31:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:54,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:31:54,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:54,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:31:54,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:54,081 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:54,120 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2024-11-14 03:31:54,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:31:54,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 03:31:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:54,124 INFO L225 Difference]: With dead ends: 38 [2024-11-14 03:31:54,124 INFO L226 Difference]: Without dead ends: 37 [2024-11-14 03:31:54,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:54,125 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:54,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:31:54,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-14 03:31:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-14 03:31:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-11-14 03:31:54,139 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 4 [2024-11-14 03:31:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:54,140 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-11-14 03:31:54,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-14 03:31:54,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:31:54,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:54,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:31:54,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:31:54,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:54,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:54,144 INFO L85 PathProgramCache]: Analyzing trace with hash 3663431, now seen corresponding path program 1 times [2024-11-14 03:31:54,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:54,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072965134] [2024-11-14 03:31:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:54,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:54,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:54,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072965134] [2024-11-14 03:31:54,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072965134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:54,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:54,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:31:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025674738] [2024-11-14 03:31:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:54,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:31:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:54,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:31:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:31:54,235 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:54,277 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2024-11-14 03:31:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:31:54,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 03:31:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:54,281 INFO L225 Difference]: With dead ends: 37 [2024-11-14 03:31:54,281 INFO L226 Difference]: Without dead ends: 36 [2024-11-14 03:31:54,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:31:54,283 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:54,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 35 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:31:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-14 03:31:54,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-14 03:31:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-11-14 03:31:54,297 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 4 [2024-11-14 03:31:54,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:54,297 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-11-14 03:31:54,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-11-14 03:31:54,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 03:31:54,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:54,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 03:31:54,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:31:54,303 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:54,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:54,303 INFO L85 PathProgramCache]: Analyzing trace with hash 113566431, now seen corresponding path program 1 times [2024-11-14 03:31:54,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:54,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474978553] [2024-11-14 03:31:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:54,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:54,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474978553] [2024-11-14 03:31:54,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474978553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:54,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:54,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:31:54,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986373659] [2024-11-14 03:31:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:54,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:31:54,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:54,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:31:54,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:54,534 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:54,625 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2024-11-14 03:31:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:31:54,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 03:31:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:54,627 INFO L225 Difference]: With dead ends: 65 [2024-11-14 03:31:54,627 INFO L226 Difference]: Without dead ends: 36 [2024-11-14 03:31:54,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:54,628 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:54,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:31:54,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-14 03:31:54,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-14 03:31:54,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.625) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2024-11-14 03:31:54,644 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 5 [2024-11-14 03:31:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:54,644 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2024-11-14 03:31:54,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2024-11-14 03:31:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 03:31:54,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:54,645 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-11-14 03:31:54,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:31:54,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:54,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:54,647 INFO L85 PathProgramCache]: Analyzing trace with hash -368855657, now seen corresponding path program 1 times [2024-11-14 03:31:54,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:54,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659779129] [2024-11-14 03:31:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:54,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:54,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659779129] [2024-11-14 03:31:54,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659779129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:31:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644088607] [2024-11-14 03:31:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:54,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:54,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:54,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:54,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:31:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:54,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:31:54,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:54,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:31:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644088607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:31:55,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1045658781] [2024-11-14 03:31:55,118 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 03:31:55,119 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:31:55,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:31:55,129 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:31:55,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:31:56,244 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:31:56,417 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '486#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2024-11-14 03:31:56,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:31:56,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:31:56,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-14 03:31:56,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666512465] [2024-11-14 03:31:56,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:31:56,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:31:56,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:56,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:31:56,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:31:56,419 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:56,524 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2024-11-14 03:31:56,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:31:56,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 03:31:56,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:56,527 INFO L225 Difference]: With dead ends: 46 [2024-11-14 03:31:56,527 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 03:31:56,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:31:56,532 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:56,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:31:56,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 03:31:56,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-14 03:31:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-11-14 03:31:56,546 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 7 [2024-11-14 03:31:56,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:56,548 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-11-14 03:31:56,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:56,549 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-11-14 03:31:56,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 03:31:56,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:56,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:56,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:31:56,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:56,750 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:56,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:56,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1452595106, now seen corresponding path program 1 times [2024-11-14 03:31:56,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:56,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25035410] [2024-11-14 03:31:56,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:56,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:56,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:56,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25035410] [2024-11-14 03:31:56,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25035410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:31:56,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195693866] [2024-11-14 03:31:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:56,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:56,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:56,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:56,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:31:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:57,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:31:57,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:57,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:31:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:57,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195693866] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:31:57,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [857890170] [2024-11-14 03:31:57,190 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-14 03:31:57,191 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:31:57,191 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:31:57,191 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:31:57,192 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:31:57,833 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:31:58,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [857890170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:58,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:31:58,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 13 [2024-11-14 03:31:58,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752025995] [2024-11-14 03:31:58,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:58,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:31:58,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:58,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:31:58,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:31:58,045 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:58,276 INFO L93 Difference]: Finished difference Result 107 states and 127 transitions. [2024-11-14 03:31:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:31:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 03:31:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:58,278 INFO L225 Difference]: With dead ends: 107 [2024-11-14 03:31:58,278 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 03:31:58,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:31:58,280 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:58,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 70 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:31:58,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 03:31:58,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2024-11-14 03:31:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 68 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2024-11-14 03:31:58,296 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 8 [2024-11-14 03:31:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:58,296 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2024-11-14 03:31:58,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2024-11-14 03:31:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 03:31:58,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:58,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:58,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:31:58,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:31:58,498 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:58,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1902570739, now seen corresponding path program 1 times [2024-11-14 03:31:58,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:58,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275156053] [2024-11-14 03:31:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:58,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:31:58,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:58,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275156053] [2024-11-14 03:31:58,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275156053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:58,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:58,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:31:58,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117376916] [2024-11-14 03:31:58,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:58,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:31:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:31:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:58,611 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:58,724 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2024-11-14 03:31:58,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:31:58,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-14 03:31:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:58,726 INFO L225 Difference]: With dead ends: 94 [2024-11-14 03:31:58,727 INFO L226 Difference]: Without dead ends: 86 [2024-11-14 03:31:58,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:31:58,729 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:58,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 59 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:31:58,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-14 03:31:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2024-11-14 03:31:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 84 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 105 transitions. [2024-11-14 03:31:58,753 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 105 transitions. Word has length 14 [2024-11-14 03:31:58,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:58,753 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 105 transitions. [2024-11-14 03:31:58,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:31:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 105 transitions. [2024-11-14 03:31:58,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:31:58,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:58,754 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2024-11-14 03:31:58,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:31:58,755 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:31:58,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:58,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1523608454, now seen corresponding path program 2 times [2024-11-14 03:31:58,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:58,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735606199] [2024-11-14 03:31:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:58,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:31:59,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:59,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735606199] [2024-11-14 03:31:59,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735606199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:31:59,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564809670] [2024-11-14 03:31:59,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:31:59,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:59,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:59,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:59,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:31:59,156 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-14 03:31:59,156 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:31:59,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:31:59,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 03:31:59,337 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:31:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 03:31:59,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564809670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:31:59,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1160044125] [2024-11-14 03:31:59,430 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 03:31:59,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:31:59,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:31:59,430 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:31:59,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:31:59,974 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:00,319 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1160#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2024-11-14 03:32:00,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:32:00,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:00,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 14 [2024-11-14 03:32:00,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073433058] [2024-11-14 03:32:00,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:32:00,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:32:00,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:00,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:32:00,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:32:00,322 INFO L87 Difference]: Start difference. First operand 85 states and 105 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:00,640 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2024-11-14 03:32:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:32:00,641 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-14 03:32:00,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:00,641 INFO L225 Difference]: With dead ends: 88 [2024-11-14 03:32:00,642 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 03:32:00,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=179, Invalid=691, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:32:00,643 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:00,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:32:00,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 03:32:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 73. [2024-11-14 03:32:00,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 72 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:00,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2024-11-14 03:32:00,653 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 16 [2024-11-14 03:32:00,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:00,653 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2024-11-14 03:32:00,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:00,653 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2024-11-14 03:32:00,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:32:00,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:00,654 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:00,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:32:00,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:00,855 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:00,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash -633656397, now seen corresponding path program 1 times [2024-11-14 03:32:00,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:00,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171241794] [2024-11-14 03:32:00,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:00,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:00,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:32:00,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:00,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171241794] [2024-11-14 03:32:00,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171241794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:00,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006061493] [2024-11-14 03:32:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:00,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:00,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:00,974 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:00,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:32:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:01,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:32:01,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:32:01,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:32:01,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006061493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:32:01,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [926477365] [2024-11-14 03:32:01,188 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:32:01,188 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:01,188 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:01,188 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:01,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:01,808 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:02,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [926477365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:02,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:02,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 5, 5] total 18 [2024-11-14 03:32:02,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480828475] [2024-11-14 03:32:02,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:02,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:32:02,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:02,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:32:02,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:32:02,386 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:02,696 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2024-11-14 03:32:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:32:02,697 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-14 03:32:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:02,698 INFO L225 Difference]: With dead ends: 105 [2024-11-14 03:32:02,698 INFO L226 Difference]: Without dead ends: 99 [2024-11-14 03:32:02,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:32:02,700 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 37 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:02,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 69 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:32:02,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-14 03:32:02,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 85. [2024-11-14 03:32:02,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 74 states have (on average 1.4189189189189189) internal successors, (105), 84 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:02,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 105 transitions. [2024-11-14 03:32:02,714 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 105 transitions. Word has length 19 [2024-11-14 03:32:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:02,716 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 105 transitions. [2024-11-14 03:32:02,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:02,717 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 105 transitions. [2024-11-14 03:32:02,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:32:02,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:02,717 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:02,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:32:02,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:02,918 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:02,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:02,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1831487130, now seen corresponding path program 1 times [2024-11-14 03:32:02,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:02,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793629566] [2024-11-14 03:32:02,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:02,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:32:02,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:02,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793629566] [2024-11-14 03:32:02,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793629566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:02,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:32:02,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:32:02,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678278443] [2024-11-14 03:32:02,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:02,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:32:02,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:02,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:32:02,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:02,993 INFO L87 Difference]: Start difference. First operand 85 states and 105 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:03,035 INFO L93 Difference]: Finished difference Result 85 states and 105 transitions. [2024-11-14 03:32:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:32:03,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-14 03:32:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:03,037 INFO L225 Difference]: With dead ends: 85 [2024-11-14 03:32:03,037 INFO L226 Difference]: Without dead ends: 84 [2024-11-14 03:32:03,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:03,038 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:03,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 47 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:32:03,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-14 03:32:03,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-14 03:32:03,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 83 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:03,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 104 transitions. [2024-11-14 03:32:03,059 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 104 transitions. Word has length 20 [2024-11-14 03:32:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:03,060 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 104 transitions. [2024-11-14 03:32:03,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 104 transitions. [2024-11-14 03:32:03,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:32:03,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:03,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:03,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:32:03,061 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:03,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash 941526288, now seen corresponding path program 1 times [2024-11-14 03:32:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:03,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729170981] [2024-11-14 03:32:03,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:03,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:32:03,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:03,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729170981] [2024-11-14 03:32:03,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729170981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:03,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:32:03,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:32:03,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574499797] [2024-11-14 03:32:03,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:03,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:32:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:03,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:32:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:03,155 INFO L87 Difference]: Start difference. First operand 84 states and 104 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:03,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:03,211 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions. [2024-11-14 03:32:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:32:03,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-14 03:32:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:03,212 INFO L225 Difference]: With dead ends: 96 [2024-11-14 03:32:03,213 INFO L226 Difference]: Without dead ends: 95 [2024-11-14 03:32:03,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:03,213 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:03,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 70 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:32:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-14 03:32:03,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2024-11-14 03:32:03,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 86 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 107 transitions. [2024-11-14 03:32:03,228 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 107 transitions. Word has length 21 [2024-11-14 03:32:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:03,228 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 107 transitions. [2024-11-14 03:32:03,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:03,229 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 107 transitions. [2024-11-14 03:32:03,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:32:03,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:03,231 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:03,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:32:03,231 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:03,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:03,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1093336313, now seen corresponding path program 1 times [2024-11-14 03:32:03,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:03,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829310705] [2024-11-14 03:32:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:03,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:32:03,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:03,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829310705] [2024-11-14 03:32:03,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829310705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:03,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112054985] [2024-11-14 03:32:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:03,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:03,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:03,353 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:03,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:32:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:03,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:32:03,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:32:03,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:32:03,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112054985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:32:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [134307391] [2024-11-14 03:32:03,579 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-14 03:32:03,580 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:03,580 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:03,580 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:03,581 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:04,520 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:05,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [134307391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:05,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:05,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 5, 5] total 20 [2024-11-14 03:32:05,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182349013] [2024-11-14 03:32:05,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:05,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:32:05,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:05,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:32:05,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:32:05,914 INFO L87 Difference]: Start difference. First operand 87 states and 107 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:06,420 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2024-11-14 03:32:06,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:32:06,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-14 03:32:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:06,422 INFO L225 Difference]: With dead ends: 118 [2024-11-14 03:32:06,422 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 03:32:06,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 9 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:32:06,423 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:06,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 88 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 2 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:32:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 03:32:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2024-11-14 03:32:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 92 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2024-11-14 03:32:06,431 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 23 [2024-11-14 03:32:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:06,431 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2024-11-14 03:32:06,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2024-11-14 03:32:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:32:06,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:06,432 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:06,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:32:06,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 03:32:06,637 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:06,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:06,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1397931560, now seen corresponding path program 1 times [2024-11-14 03:32:06,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:06,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744366197] [2024-11-14 03:32:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:06,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:32:06,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:06,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744366197] [2024-11-14 03:32:06,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744366197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:06,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:32:06,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:32:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976951635] [2024-11-14 03:32:06,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:06,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:32:06,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:32:06,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:32:06,691 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:06,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:06,741 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2024-11-14 03:32:06,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:32:06,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-14 03:32:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:06,742 INFO L225 Difference]: With dead ends: 94 [2024-11-14 03:32:06,742 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 03:32:06,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:32:06,744 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:06,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:32:06,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 03:32:06,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2024-11-14 03:32:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 90 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:06,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2024-11-14 03:32:06,760 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 23 [2024-11-14 03:32:06,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:06,760 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2024-11-14 03:32:06,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:06,760 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2024-11-14 03:32:06,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:32:06,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:06,761 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:06,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:32:06,762 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:06,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:06,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1421701647, now seen corresponding path program 1 times [2024-11-14 03:32:06,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:06,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732940746] [2024-11-14 03:32:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:06,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:32:06,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:06,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732940746] [2024-11-14 03:32:06,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732940746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:06,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893031227] [2024-11-14 03:32:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:06,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:06,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:06,909 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:06,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:32:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:06,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:32:06,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:07,028 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:32:07,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:32:07,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893031227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:32:07,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [567838304] [2024-11-14 03:32:07,084 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:32:07,085 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:07,085 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:07,085 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:07,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:07,636 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:08,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [567838304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:08,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:08,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 5, 5] total 18 [2024-11-14 03:32:08,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931439574] [2024-11-14 03:32:08,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:08,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:32:08,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:08,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:32:08,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:32:08,387 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:08,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:08,753 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2024-11-14 03:32:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:32:08,754 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-14 03:32:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:08,754 INFO L225 Difference]: With dead ends: 121 [2024-11-14 03:32:08,755 INFO L226 Difference]: Without dead ends: 114 [2024-11-14 03:32:08,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 53 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:32:08,756 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 65 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:08,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 34 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:32:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-14 03:32:08,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2024-11-14 03:32:08,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 101 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2024-11-14 03:32:08,764 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 24 [2024-11-14 03:32:08,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:08,764 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2024-11-14 03:32:08,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:08,764 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2024-11-14 03:32:08,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 03:32:08,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:08,765 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:08,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:32:08,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:08,970 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:08,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:08,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1993922840, now seen corresponding path program 1 times [2024-11-14 03:32:08,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:08,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846926990] [2024-11-14 03:32:08,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:08,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:32:09,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:09,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846926990] [2024-11-14 03:32:09,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846926990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:09,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:32:09,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:32:09,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481095802] [2024-11-14 03:32:09,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:09,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:32:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:32:09,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:09,034 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:09,094 INFO L93 Difference]: Finished difference Result 102 states and 122 transitions. [2024-11-14 03:32:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:32:09,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-14 03:32:09,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:09,095 INFO L225 Difference]: With dead ends: 102 [2024-11-14 03:32:09,095 INFO L226 Difference]: Without dead ends: 98 [2024-11-14 03:32:09,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:09,097 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:09,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 29 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:32:09,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-14 03:32:09,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2024-11-14 03:32:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 89 states have (on average 1.2134831460674158) internal successors, (108), 91 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 108 transitions. [2024-11-14 03:32:09,107 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 108 transitions. Word has length 27 [2024-11-14 03:32:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:09,107 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 108 transitions. [2024-11-14 03:32:09,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 108 transitions. [2024-11-14 03:32:09,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:32:09,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:09,109 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:09,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:32:09,111 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:09,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:09,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1682065798, now seen corresponding path program 1 times [2024-11-14 03:32:09,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:09,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237881188] [2024-11-14 03:32:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:09,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:32:09,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237881188] [2024-11-14 03:32:09,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237881188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:09,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:32:09,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:32:09,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134310811] [2024-11-14 03:32:09,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:09,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:32:09,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:09,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:32:09,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:09,180 INFO L87 Difference]: Start difference. First operand 92 states and 108 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:09,236 INFO L93 Difference]: Finished difference Result 92 states and 108 transitions. [2024-11-14 03:32:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:32:09,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-14 03:32:09,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:09,238 INFO L225 Difference]: With dead ends: 92 [2024-11-14 03:32:09,238 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 03:32:09,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:32:09,239 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:09,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:32:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 03:32:09,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2024-11-14 03:32:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 77 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:09,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2024-11-14 03:32:09,245 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 28 [2024-11-14 03:32:09,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:09,246 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2024-11-14 03:32:09,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:09,246 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2024-11-14 03:32:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:32:09,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:09,250 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:09,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 03:32:09,251 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:09,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash 177924208, now seen corresponding path program 1 times [2024-11-14 03:32:09,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:09,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232739675] [2024-11-14 03:32:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:09,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:32:09,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:09,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232739675] [2024-11-14 03:32:09,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232739675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:09,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861195944] [2024-11-14 03:32:09,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:09,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:09,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:09,397 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:09,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:32:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:09,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:32:09,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:32:09,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:32:09,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861195944] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:32:09,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1104663765] [2024-11-14 03:32:09,611 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:32:09,612 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:09,613 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:09,613 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:09,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:10,118 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:11,044 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3681#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_sort_~x#1.offset| 0) (<= 2 |ULTIMATE.start_sort_~n#1|) (<= 2 |ULTIMATE.start_sort_~x#1.base|) (<= |ULTIMATE.start_sort_~n#1| 2147483647))' at error location [2024-11-14 03:32:11,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:32:11,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:11,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-14 03:32:11,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380694058] [2024-11-14 03:32:11,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:32:11,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:32:11,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:32:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:32:11,047 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:11,152 INFO L93 Difference]: Finished difference Result 182 states and 212 transitions. [2024-11-14 03:32:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:32:11,153 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-14 03:32:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:11,153 INFO L225 Difference]: With dead ends: 182 [2024-11-14 03:32:11,153 INFO L226 Difference]: Without dead ends: 109 [2024-11-14 03:32:11,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 59 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-14 03:32:11,155 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 19 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:11,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 102 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:32:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-14 03:32:11,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2024-11-14 03:32:11,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 106 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2024-11-14 03:32:11,162 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 28 [2024-11-14 03:32:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:11,162 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2024-11-14 03:32:11,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2024-11-14 03:32:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-14 03:32:11,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:11,163 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:11,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:32:11,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:11,368 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:11,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:11,368 INFO L85 PathProgramCache]: Analyzing trace with hash -915965068, now seen corresponding path program 1 times [2024-11-14 03:32:11,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:11,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404321828] [2024-11-14 03:32:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:11,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:32:11,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:11,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404321828] [2024-11-14 03:32:11,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404321828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:11,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754024939] [2024-11-14 03:32:11,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:11,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:11,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:11,600 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:11,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:32:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:11,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:32:11,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:32:11,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:32:12,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754024939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:32:12,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [601372845] [2024-11-14 03:32:12,053 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-14 03:32:12,053 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:12,054 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:12,054 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:12,054 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:12,692 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:13,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [601372845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:13,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:13,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 10, 10] total 26 [2024-11-14 03:32:13,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937762065] [2024-11-14 03:32:13,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:13,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:32:13,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:13,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:32:13,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2024-11-14 03:32:13,880 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:14,106 INFO L93 Difference]: Finished difference Result 108 states and 125 transitions. [2024-11-14 03:32:14,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:32:14,107 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-14 03:32:14,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:14,108 INFO L225 Difference]: With dead ends: 108 [2024-11-14 03:32:14,108 INFO L226 Difference]: Without dead ends: 107 [2024-11-14 03:32:14,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 71 SyntacticMatches, 17 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2024-11-14 03:32:14,110 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:14,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 28 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 1 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:32:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-14 03:32:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 82. [2024-11-14 03:32:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.175) internal successors, (94), 81 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:14,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions. [2024-11-14 03:32:14,122 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 36 [2024-11-14 03:32:14,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:14,123 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 94 transitions. [2024-11-14 03:32:14,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2024-11-14 03:32:14,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 03:32:14,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:14,124 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:14,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:32:14,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:32:14,325 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:14,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:14,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2076212883, now seen corresponding path program 2 times [2024-11-14 03:32:14,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:14,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536736272] [2024-11-14 03:32:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:14,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:32:14,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:14,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536736272] [2024-11-14 03:32:14,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536736272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:14,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:32:14,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:32:14,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098852843] [2024-11-14 03:32:14,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:14,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:32:14,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:14,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:32:14,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:32:14,435 INFO L87 Difference]: Start difference. First operand 82 states and 94 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:14,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:14,507 INFO L93 Difference]: Finished difference Result 145 states and 166 transitions. [2024-11-14 03:32:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:32:14,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-14 03:32:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:14,509 INFO L225 Difference]: With dead ends: 145 [2024-11-14 03:32:14,510 INFO L226 Difference]: Without dead ends: 114 [2024-11-14 03:32:14,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:32:14,511 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:14,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:32:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-14 03:32:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 88. [2024-11-14 03:32:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 86 states have (on average 1.1627906976744187) internal successors, (100), 87 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2024-11-14 03:32:14,525 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 38 [2024-11-14 03:32:14,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:14,526 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2024-11-14 03:32:14,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2024-11-14 03:32:14,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 03:32:14,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:14,527 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:14,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 03:32:14,528 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:14,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1697294558, now seen corresponding path program 1 times [2024-11-14 03:32:14,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:14,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188699280] [2024-11-14 03:32:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:14,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:32:14,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:14,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188699280] [2024-11-14 03:32:14,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188699280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848569865] [2024-11-14 03:32:14,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:14,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:14,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:14,703 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:14,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:32:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:14,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:32:14,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 03:32:15,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 03:32:15,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848569865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:32:15,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1237677862] [2024-11-14 03:32:15,179 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 03:32:15,180 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:15,180 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:15,180 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:15,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:15,846 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:16,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1237677862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:32:16,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:16,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 9, 9] total 29 [2024-11-14 03:32:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214567373] [2024-11-14 03:32:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:32:16,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 03:32:16,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 03:32:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:32:16,961 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:17,431 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2024-11-14 03:32:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:32:17,432 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-14 03:32:17,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:17,433 INFO L225 Difference]: With dead ends: 88 [2024-11-14 03:32:17,433 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 03:32:17,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 92 SyntacticMatches, 12 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:32:17,437 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:17,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 2 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:32:17,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 03:32:17,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 69. [2024-11-14 03:32:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.1176470588235294) internal successors, (76), 68 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2024-11-14 03:32:17,451 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 43 [2024-11-14 03:32:17,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:17,451 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2024-11-14 03:32:17,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:17,451 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2024-11-14 03:32:17,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:32:17,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:17,456 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 03:32:17,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 03:32:17,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:17,657 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:32:17,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash -981397003, now seen corresponding path program 3 times [2024-11-14 03:32:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:17,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010921307] [2024-11-14 03:32:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:17,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:32:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-14 03:32:17,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:17,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010921307] [2024-11-14 03:32:17,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010921307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:17,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055972670] [2024-11-14 03:32:17,897 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:32:17,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:17,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:17,900 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:17,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:32:18,022 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:32:18,023 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:32:18,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:32:18,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-14 03:32:18,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-14 03:32:18,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055972670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:32:18,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [873502082] [2024-11-14 03:32:18,324 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:32:18,325 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:18,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:18,325 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:18,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:18,786 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:19,774 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5556#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_sort_~x#1.offset| 0) (<= 2 |ULTIMATE.start_sort_~n#1|) (<= 2 |ULTIMATE.start_sort_~x#1.base|) (<= |ULTIMATE.start_sort_~n#1| 2147483647))' at error location [2024-11-14 03:32:19,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:32:19,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:19,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-14 03:32:19,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380282572] [2024-11-14 03:32:19,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:32:19,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 03:32:19,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:19,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 03:32:19,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:32:19,777 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:20,083 INFO L93 Difference]: Finished difference Result 137 states and 153 transitions. [2024-11-14 03:32:20,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:32:20,084 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-14 03:32:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:20,085 INFO L225 Difference]: With dead ends: 137 [2024-11-14 03:32:20,085 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:32:20,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 138 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 03:32:20,087 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 41 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:20,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 99 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:32:20,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:32:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:32:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:32:20,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2024-11-14 03:32:20,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:20,088 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:32:20,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:32:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:32:20,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:32:20,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-11-14 03:32:20,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-11-14 03:32:20,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-14 03:32:20,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-14 03:32:20,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-14 03:32:20,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-14 03:32:20,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-14 03:32:20,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-14 03:32:20,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-14 03:32:20,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-14 03:32:20,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-14 03:32:20,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-14 03:32:20,095 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-14 03:32:20,095 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-14 03:32:20,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:32:20,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:20,303 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:20,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:32:20,701 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:32:20,715 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 03:32:20,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~numbers~0!base [2024-11-14 03:32:20,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~malloc9!base [2024-11-14 03:32:20,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~numbers~0!offset [2024-11-14 03:32:20,720 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 03:32:20,721 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~malloc9!base [2024-11-14 03:32:20,721 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!offset [2024-11-14 03:32:20,721 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!base [2024-11-14 03:32:20,721 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 03:32:20,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~malloc9!base [2024-11-14 03:32:20,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!offset [2024-11-14 03:32:20,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!base [2024-11-14 03:32:20,723 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 03:32:20,723 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~malloc9!base [2024-11-14 03:32:20,723 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!offset [2024-11-14 03:32:20,724 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!base [2024-11-14 03:32:20,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:32:20 BoogieIcfgContainer [2024-11-14 03:32:20,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:32:20,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:32:20,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:32:20,728 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:32:20,729 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:31:53" (3/4) ... [2024-11-14 03:32:20,732 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:32:20,741 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-14 03:32:20,741 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 03:32:20,742 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 03:32:20,742 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:32:20,865 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:32:20,866 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:32:20,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:32:20,872 INFO L158 Benchmark]: Toolchain (without parser) took 28920.29ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 91.8MB in the beginning and 119.2MB in the end (delta: -27.5MB). Peak memory consumption was 133.9MB. Max. memory is 16.1GB. [2024-11-14 03:32:20,872 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:32:20,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.92ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 74.9MB in the end (delta: 16.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:32:20,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.97ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:32:20,872 INFO L158 Benchmark]: Boogie Preprocessor took 27.65ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 72.3MB in the end (delta: 956.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:32:20,873 INFO L158 Benchmark]: RCFGBuilder took 585.57ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 57.2MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:32:20,873 INFO L158 Benchmark]: TraceAbstraction took 27412.46ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 56.7MB in the beginning and 124.3MB in the end (delta: -67.6MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2024-11-14 03:32:20,873 INFO L158 Benchmark]: Witness Printer took 138.99ms. Allocated memory is still 276.8MB. Free memory was 124.3MB in the beginning and 119.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:32:20,876 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.92ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 74.9MB in the end (delta: 16.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.97ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.65ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 72.3MB in the end (delta: 956.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 585.57ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 57.2MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 27412.46ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 56.7MB in the beginning and 124.3MB in the end (delta: -67.6MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. * Witness Printer took 138.99ms. Allocated memory is still 276.8MB. Free memory was 124.3MB in the beginning and 119.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~numbers~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~malloc9!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~numbers~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~malloc9!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~malloc9!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~malloc9!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 528]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 528]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 26.9s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 333 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 333 mSDsluCounter, 1549 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1164 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1759 IncrementalHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 385 mSDtfsCounter, 1759 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 867 GetRequests, 561 SyntacticMatches, 71 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1707 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=17, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 167 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 707 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 926 ConstructedInterpolants, 0 QuantifiedInterpolants, 2541 SizeOfPredicates, 25 NumberOfNonLiveVariables, 836 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 41 InterpolantComputations, 11 PerfectInterpolantSequences, 425/685 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 4.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 110, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 366, TOOLS_POST_TIME: 3.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 358, TOOLS_QUANTIFIERELIM_TIME: 3.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 550, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 30, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 22, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 33, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 110, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 11, LOOP_SUMMARIZER_CACHE_MISSES: 11, LOOP_SUMMARIZER_OVERALL_TIME: 3.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 33, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1676, DAG_COMPRESSION_RETAINED_NODES: 339, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: ((((0 <= i) && (i <= 2147483647)) && (array_size <= 536870910)) && (1 <= array_size)) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: ((((((1 <= pass) && (2 <= n)) && (pass <= 2147483647)) && (n <= 2147483647)) || ((n <= 0) && (pass == 1))) || ((n <= 2147483647) && (pass == 1))) - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: ((((1 <= pass) && (((long long) pass + 1) <= n)) && (0 <= i)) && (n <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2024-11-14 03:32:20,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d26d07-0256-43ac-b5c0-bec587d3cbec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE